http://www.kartreview.co.uk/index.php?/forums/topic/10-motorsport-videos/#comment-141

For some reason my embedded youtube videos seem to be restricted to 270px in height. Is this a setting somewhere or do I have a bug?

This happens on the standard IPS skin too.

 

That was a bug that should be resolved with the most recent RCs. 

Ok thanks. I'm on RC4 so glad to hear it is fixed.